package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.StatusConstant;
import com.sky.dto.SetmealDTO;
import com.sky.dto.SetmealPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.entity.Setmeal;
import com.sky.entity.SetmealDish;
import com.sky.exception.DeletionNotAllowedException;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetmealDishMapper;
import com.sky.mapper.SetmealMapper;
import com.sky.result.PageResult;
import com.sky.service.SetmealService;
import com.sky.vo.DishItemVO;
import com.sky.vo.SetmealVO;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.ArrayList;
import java.util.List;
import java.util.function.Consumer;

@Service
@Slf4j
public class SetmealServiceImpl implements SetmealService {
    @Autowired
    private SetmealMapper setmealMapper;
    @Autowired
    private SetmealDishMapper setmealDishMapper;
    @Autowired
    private DishMapper dishMapper;
    @Override
    public void save(SetmealDTO setmealDTO) {
        //setmeal插入
        Setmeal setmeal = new Setmeal();
        BeanUtils.copyProperties(setmealDTO, setmeal);
        setmealMapper.insert(setmeal);
        //获取dish主键
        Long setmealId = setmeal.getId();
        List<SetmealDish> setmealDishes = setmealDTO.getSetmealDishes();
        log.info("!5!"+setmealId);
        for (SetmealDish setmealDish : setmealDishes) {
            log.info("22");
            setmealDish.setSetmealId(setmealId);
            log.info(setmealDish.toString()+setmealDish.getDishId()+"!!!!!!!!!!!");
        }
        //setmeal_dish插入
        setmealDishMapper.insertBatch(setmealDishes);
    }

    @Override
    public PageResult pageQuery(SetmealPageQueryDTO setmealPageQueryDTO) {
        PageHelper.startPage(setmealPageQueryDTO.getPage(),setmealPageQueryDTO.getPageSize());
        Page<SetmealVO> page=setmealMapper.pageQuery(setmealPageQueryDTO);
        return new PageResult(page.getTotal(),page.getResult());
    }

    @Transactional
    @Override
    public void deleteBatch(List<Long> ids) {
        ids.forEach(id->{
            Setmeal setmeal=setmealMapper.getById(id);
            if(setmeal.getStatus()== StatusConstant.ENABLE){
                throw  new DeletionNotAllowedException(MessageConstant.SETMEAL_ON_SALE);
            }
        });
        ids.forEach(id->{
            setmealMapper.deleteById(id);
            setmealDishMapper.deleteBySetmealId(id);
        });
    }

    @Override
    public SetmealVO getById(Long id) {
        Setmeal setmeal = setmealMapper.getById(id);
        SetmealVO setmealVO = new SetmealVO();
        BeanUtils.copyProperties(setmeal,setmealVO);
        List<SetmealDish> setmealDishes= setmealDishMapper.getByDishId(id);
        setmealVO.setSetmealDishes(setmealDishes);
        return setmealVO;
    }

    @Transactional
    @Override
    public void update(SetmealDTO setmealDTO) {
        //setmeal
        Setmeal setmeal = new Setmeal();
        BeanUtils.copyProperties(setmealDTO, setmeal);
        setmealMapper.update(setmeal);
        //删除
        setmealDishMapper.deleteBySetmealId(setmeal.getId());
        //插入setmeal——dish
        List<SetmealDish> setmealDishes = setmealDTO.getSetmealDishes();
        setmealDishes.forEach(setmealDish->{
            setmealDish.setSetmealId(setmeal.getId());
        });
        setmealDishMapper.insertBatch(setmealDishes);
    }

    @Transactional
    @Override
    public void startOrStop(Integer status, Long id) {
        if(status==StatusConstant.ENABLE){
            List<Dish> dishList = dishMapper.getBySetmealId(id);
            if(dishList!=null&&dishList.size()>0){
                dishList.forEach(dish->{
                    if(dish.getStatus()==StatusConstant.DISABLE){
                        throw  new DeletionNotAllowedException(MessageConstant.SETMEAL_ON_SALE);
                    }
                });
            }
        }
        Setmeal setmeal=Setmeal.builder().id(id).status(status).build();
        setmealMapper.update(setmeal);
    }

    /**
     * 条件查询
     * @param setmeal
     * @return
     */
    public List<Setmeal> list(Setmeal setmeal) {
        List<Setmeal> list = setmealMapper.list(setmeal);
        return list;
    }

    /**
     * 根据id查询菜品选项
     * @param id
     * @return
     */
    public List<DishItemVO> getDishItemById(Long id) {
        return setmealMapper.getDishItemBySetmealId(id);
    }
}
